Abbott FreeStyle Libre 2 Manual - Halaman 8
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Halaman Cetak
8
How does the sensor work?
How does the sensor
measure glucose?
When you apply the FreeStyle Libre 2
sensor, a thin filament is inserted under
your skin and measures glucose levels.
What does the sensor measure?
The sensor measures the glucose levels
in the interstitial fluid (ISF)—a fluid that
surrounds the cells beneath your skin—
instead of blood glucose.
TIPS TO REMEMBER
It can take a few moments
for glucose to move from
blood to the ISF
Blood glucose readings
2
tend to be about 2 minutes
ahead of sensor readings
For illustrative purposes only. Image not drawn to scale.
* Finger pricks are required if readings do not match symptoms or expectations.
Reference: 1 Alva S, Bailey T, Brazg R, et al. Accuracy of a 14-day factory-calibrated continuous glucose monitoring system with advanced algorithm in pediatric
.
and adult population with diabetes. J Diabetes Sci Technol. 2020;1932296820958754.
Skin
ISF
Your trend arrow tells you
what direction your glucose
is heading
No confirmatory finger
pricks required, even when
glucose is low, falling, or
1
rapidly changing*
Cells
Glucose Capillary